One of our most popular case studies compares various manufacturing methods for a missile component that controls flight. Supersonic missiles are highly sensitive to the exact geometry of control surfaces and precision is mission critical. Canards (French for “duck”) are the pivoting fins attached to the side body of missiles ahead of the main wing that provide stability and maneuverability for a projectile. Supersonic missiles must also shift between subsonic and supersonic speeds and canards affect the airflow against the main wing, altering the center of mass, and shifting the aerodynamic center. Thus, any deviation in geometric specifications will greatly affect flight control, causing extra turbulence and unanticipated movement.